Average Bench: 62.3% (481st of 873)

more Based on 890 user benchmarks.  Models: KINGSTON SKC300S37A120G, KINGSTON SKC300TS37A120G, KINGSTON KINGSTON SKC300S, KINGSTON SKC300S37A1, KINGSTON SKC300S37A120G, KINGSTON SKC300S

Above average average bench

The Kingston SSDNow KC300 120GB averaged 37.6% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K Random Write Speed 70.5MB/s
Avg. 4K Random Read Speed 24.3MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Kingston SSDNow KC300 120GB is 29.3%. This is a relatively narrow range which indicates that the Kingston SSDNow KC300 120GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Write Speed 175MB/s
Avg. 4K-64Thread Read Speed 121MB/s

Average Bench

(Based on 890 samples)
Min Avg Max
337 Read 460 513
130 Write 175 204
160 Mixed 218 265
62.2% 284 MB/s
Min Avg Max
13.2 4K Read 24.3 34.9
33.5 4K Write 70.5 107
7.87 4K Mixed 15.5 23.2
93.9% 36.7 MB/s
Min Avg Max
21.3 DQ Read 121 219
50.7 DQ Write 141 202
7.14 DQ Mixed 36.1 62.2
53.5% 99.4 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
39GB free
Firmware: 600ABBF0 Max speed: SATA 3.0 600 MB/s
Read 488
Write 181
Mixed 191
62% 287 MB/s
4K Read 14.3
4K Write 110
4K Mixed 23.2
110% 49.2 MB/s
DQ Read 202
DQ Write 167
DQ Mixed 53.2
76% 141 MB/s
40GB free
Firmware: 526ABBF0 Max speed: SATA 3.0 600 MB/s
Read 497
Write 200
Mixed 269
71% 322 MB/s
4K Read 26.2
4K Write 69.4
4K Mixed 17.3
98% 37.6 MB/s
DQ Read 28.8
DQ Write 68.4
DQ Mixed 50.5
38% 49.3 MB/s
66GB free
Firmware: 605ABBF0 Max speed: SATA 3.0 600 MB/s
Read 493
Write 177
Mixed 245
67% 305 MB/s
4K Read 22.1
4K Write 51.2
4K Mixed 10.6
74% 28 MB/s
DQ Read 22.8
DQ Write 155
DQ Mixed 54.4
52% 77.3 MB/s
11GB free
Firmware: 603ABBF1 Max speed: SATA 3.0 600 MB/s
Read 421
Write 141
Mixed 204
56% 255 MB/s
4K Read 15.7
4K Write 95.4
4K Mixed 8.92
86% 40 MB/s
DQ Read 19.7
DQ Write 107
DQ Mixed 4.25
21% 43.6 MB/s
890 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 5,195,791 SSDs tested.


EbayUS $10026 mins
AmazonUS $1029 months
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Typical SSDNow KC300 120GB Builds (Compare 1,850 builds) See popular component choices, score breakdowns and rankings.
Gaming 54%
Desktop 49%
Workstation 38%
Jet ski

Motherboard: Asrock 990FX Extreme3 - $112

EDIT WITH CUSTOM PC BUILDER Value: 62% - Good Total price: $702

Popular SSDNow KC300 120GB compatible motherboards:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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Solid State Drive Rankings (Price vs Performance) January 2018 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]


Controller: SandForce SF2281. Flash Memory: Toshiba 19nm Toggle Mode.

One of the most power-efficient SSDs on the market...

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873 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

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